Mottling on parsley
A couple of my parsley plants have developed a kind of dark-brown mottling on the upside of their leaves; irregular-shaped spots that seems to go down the petioles as well. The leaves are going slightly chlorotic, especially at the tips. The undersides are relatively clean, but the more severe spots seem to show through.
The photos above come from the plant at the bottom of this photo:
Neither of the plants at the top seem to have it, but another plant further to the right of them--pretty isolated from the first--is starting to get it (and the photo directly below is a sample from that plant). I also have more parsleys growing in pots nearby. I transplanted these four just a couple of weeks ago.
I've never had any major problems with parsley before, but I did recently have a similar mottling on a lemon myrtle sapling. IIRC, the worst-looking plant grew up next to the myrtle as a seedling, while the other plants were nowhere near it. But the myrtle has since completely recovered (without the use of any treatments), and the two species are, obviously, very much unrelated.
A note on the mulch: On the myrtle, I had used eucalyptus mulch. The mulch on these parsley plants is pea straw and I applied it two days ago. I don't remember whether the problem was there when I applied it.
What am I doing wrong?
Comments (6)
11 years agolast modified: 11 years agoRelated Professionals
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I'm so glad you bumped this, Rick, because it's actually gotten worse since the initial post. Still hasn't spread to the other plants, though.
So I don't know if it's a nutrient problem. The soil was really good to begin with, and I've fertilised once since the start of spring here (when Woko suggested it three weeks ago).Maybe salt spray or pH, but it's worsening without its neighbours being affected. Can pH be that localised? Or each plant copes differently? I've actually never done a test before, so I think I will pick up a kit just to see.
I found that PDF you directed me to, Rick. I had seen that, but you mentioned viruses, which I hadn't considered, so I took another look. That could be it. So obscure, but would explain why it's not spreading as I haven't seen any aphids on them since the seedling stage.
To be honest I'm probably just going to dig it out and toss it --there are plenty of healthy plants waiting to take its place. But I'd still be interested to know whether anybody's seen something similar.
- 11 years ago
Woko